The patient, Brendan M. Marrocco, a 26-year-old infantryman, lost all four limbs in a 2009 roadside bomb attack in Iraq. Marrocco received a transplant of two arms from a deceased donor, becoming one of only seven people in the United States who have undergone successful double hand transplants. Marrocco and his surgeons spoke at press conference at The Johns Hopkins Hospital on January 29, 2013. View more coverage of the press conference.